Topsoil is the most fertile soil layer for plants.
Energy flows from one animal or plant eating or getting eaten to the next anima above it. As for your translation, the crickets are eating the grass then are getting eaten by the secondary consumers and finally getting fed to the largest consumer and every time you go up in the food chain more and more energy is being passed on.
Answer: Replication
Explanation: When the cell is preparing to divide it will <u>replicate</u> its DNA so that both of the daughter cells will have a complete set of the DNA. It's like a book of instructions and the cell has to perfectly replicate it so that when it splits into two both of the new cells will have a perfectly made copy of it! Hope this helps :)
Answer: The answer would be Substrates